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resource
surrogate
- a set of linguistic assertions
- about a resource; metadata description i.e. HAMLET{PLAYWRIGHT}WILLIAM
- SHAKESPEARE; records created using language of description
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semantics
- branch of language concerned with the meaning of words, signs, and symbols that
- constitute the elements of change and evolution in a spoken or written language;
- semantic relation-meaning change through context
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statement
- attribute value pair that makes
- some assertion of some resource, made up of a subject, predicate, and
- objectsubject-tells who/what statement
- is aboutpredicate-defines relationship between
- subject and object; makes object value a characteristic of subject and
- defines meaning of characteristics
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attribute
space
- (schemas) bounded set of properties identifying the kinds of assertions that can be made about a resource; predicate, what can be said about a resource attribute/value pair-metadata
- statement that makes an assertion about a resource
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domain
(related to a property)-
- domain is the class for which a
- property is formally defined; means that instances of the property are applicable to instances of its domain class—ex: properties{playwright} and
- {composer} might be defined as having a domain class of “creators”
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identifiers (weak, strong & powerful)
- unique representation that points to one and only
- one thing; unique alpha numeric string assigned to a referentweak- semantically laden lexical strings, ex: “Twain,
- Mark. 1835-1910”strong- they are created within the system not global,
- ex: ISBN, SSN
- powerful – has authority and global
- usability, ex: HHP URI
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schema
- bounded set of properties identifying the kinds of assertions that can be made about a
- resource (attribute space)
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domain
analysis
- thinkingabout system purpose and how to translate system purpose into a language of description; what is the stuff we are trying to describe; determine
- entities/units analysis you might be ask to describe
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